Hi, here is the solution...
The Fibonacci series 1, 1, 2, 3, 5, 8, 13, 21, 34...
3rd number = Sum of the first two numbers.
2 = 1 + 1
4th number = Sum of the two numbers before it
That is, 3 = 2 + 1
5th number is 5.
5 = 3 + 2 (Sum of the two numbers before 5).
6th number is 8
8 = 5 + 3
7th number is 13
13 = 8 + 5
8th number is 21
21 = 13 + 8
Therefore, the conjecture is " Each number in the series is The Sum of Two Numbers Before it."
Hope you understand the concept.
Thank you :)